A round white sign with a red circle around a number (e.g. 50) means:

Question: A round white sign with a red circle around a number (e.g. 50) means:

Answer options:

• Recommended speed ✅ Maximum legal speed
• Minimum speed
• Distance to next town

Correct answer: Maximum legal speed

Explanation: Under Alberta traffic laws, a white regulatory sign featuring a black number inside a red circle represents the maximum legal speed limit allowed under ideal driving conditions. Operating a vehicle above this limit is a traffic offense. In contrast, recommended or advisory speeds are placed on yellow warning signs to suggest safe speeds for hazards, while minimum speeds and distance markers use different layouts and colors. Understanding official sign shapes and colors is a fundamental requirement of the Alberta Class 7 knowledge test, as distinguishing regulatory mandates from warnings ensures safe road sharing and compliance.